A significant challenge faced by Mizoram in its early years of statehood was:

Rehabilitation of former insurgents
Economic underdevelopment
Continuing border tensions
All of the above

The correct answer is: d) All of the above

Mizoram is a state in northeastern India. It is the second-least populous state in India, after Sikkim. The state is bordered by Assam to the north, Tripura to the west, Bangladesh to the south, and Myanmar to the east. The capital of Mizoram is Aizawl.

Mizoram was a part of the Lushai Hills District of Assam until 1972. It became a Union Territory in 1972 and a state in 1987.

The state of Mizoram has faced a number of challenges since its inception. One of the most significant challenges has been the rehabilitation of former insurgents. The Mizo National Front (MNF) was an armed insurgent group that fought for the independence of Mizoram from India. The MNF signed a peace agreement with the Indian government in 1986, and the state of Mizoram was formed in 1987. However, the rehabilitation of former insurgents has been a long and difficult process.

Another significant challenge faced by Mizoram has been economic underdevelopment. The state has a low per capita income and a high rate of poverty. The economy of Mizoram is based on agriculture, forestry, and tourism. However, these sectors have not been able to generate enough employment opportunities for the growing population of the state.

The state of Mizoram has also faced the challenge of continuing border tensions. The state shares a border with Bangladesh and Myanmar. There have been a number of incidents of cross-border firing and smuggling along the borders of Mizoram.

The state of Mizoram has made significant progress in addressing the challenges it has faced. However, there are still a number of challenges that need to be addressed. The rehabilitation of former insurgents, economic underdevelopment, and continuing border tensions are some of the most significant challenges faced by Mizoram.